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If evaluation reveals that a LangChain chain returns incorrect answers for some inputs, what should a developer do next?

medium📝 Conceptual Q5 of 15
LangChain - Evaluation and Testing
If evaluation reveals that a LangChain chain returns incorrect answers for some inputs, what should a developer do next?
AIgnore the errors and deploy anyway
BFix the chain logic or retrain components
CRemove the evaluation step
DIncrease the input size without changes
Step-by-Step Solution
Solution:
  1. Step 1: Interpret evaluation results

    Incorrect answers mean the chain logic or model needs fixing.
  2. Step 2: Choose corrective action

    Fixing logic or retraining components addresses the root cause before deployment.
  3. Final Answer:

    Fix the chain logic or retrain components -> Option B
  4. Quick Check:

    Evaluation failure = fix before deploy [OK]
Quick Trick: Fix errors found in evaluation before deploying [OK]
Common Mistakes:
MISTAKES
  • Deploying with known errors
  • Skipping evaluation
  • Changing inputs without fixing logic

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